Sand and mineral drier.



PATENTED MAR. 19, 1907.

www 11111111 Pm-.w 1 MT# M. SCHABFPBR. y SAND iAND MINERAL DRIER. l APPLICATION FILED Nov. 30,1900.

WJTNESSES.-

ATTORNEY'.

THE NURRIS PETERS C0., WASHINGTON. D. |:A

MARGUERITE SCHAEFFER, OF INDIANAPOLIS, INDIANA.

SAND AND MINERAL DRIER.

Specicaton of Letters latent.4

Patented March 19, 1907.

Application filed November 30,1906. Serial No. 345,611.

T0 all L11/com, t may concern,.-

Be it known that I, MARGUERITE SCHARF- FER, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Sand and Mineral Driers and I do declare the following to be a full, clear, and exact description of the invention, referencebeing had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to apparatus for drying various substances-such as sand, minerals, or other granular sub stances or cereal s the invention having reference more particularly to the class of driers which may be manufactured complete in the factory and shipped conveniently to be set up perma nently where they may be needed.

The objects of the invention are to provide a drier which may be constructed at relatively small cost, of compact form, simple design, and so that it may not be liable to derangement, and which will be strong, durable, and economical in use, a particular object being to provide a drier whereby substances may be dried rapidly.

With the above-mentioned and other objects in view the invention comprises a drier having novel features of construction, in the novel parts and combinations and arrangements of parts, as hereinafter particularly descrih ed and claimed.

Referring to the drawings, Figure l is a front elevation of the improved drier; Fig. 2, a longitudinal vertical sectional view on the line A in Fig. 1, and Fig. 3 a transverse vertical sectional view on the plane of the line B in Fig. 2.

Similar reference characters in the several figures of the drawings designate like parts or features of construction.

Practically the invention comprises a wall C, th at is rectangular in plan and forms when placed upon the ground or a foundation an ash-pit for a furnace and is provided with a door D. The wall is shown as being composed of bricks, so that it may be erected at the place of use, but may be constructed of other material. A suitable number of firegrates E are arranged upon the ash-pit wall.

The main structure is complete in itself, so that it may be shipped as a whole in one I part, and it comprises a rectangular structure having flat front and rear walls c and b and side walls c and d, the side Walls having angleirons c attached to the inner sides thereof that are inclined to the front and rear walls, the latter having angle-irons e attached to the inner sides thereof horizontally. The structure is provided with a roof The walls are constructed so as to prevent radiation of heat which must be retained therein for carrying out the drying process.

The walls may he suitably formed of two layers of sheet metal and a layer of asbestos or similar substances between the metallic layers, or, if desired, either one of the metallic layers maybe omitted.

The bottom of the metallic structure when made is open and is provided witha base g, which is placed upon the wall C, the base eX-, tending about the set of grate-bars, and a suitable fire-lining F is arranged upon the wall C to form a furnace which is provided with a furnace-door it, hinged to the front wall a. An inclined floor 'i is arranged in the structure immediately above the furnace proper and forms a roof for the furnace, the floor extending entirely across from one side wall to the other and from the front to the rear wall and slants downwardly toward the rear wall upon the furnace-lining F.

The rear wall has a discharge-opening j immediately above the floor t, and a spout 7c is mounted on the rear wall b at the opening j, the latter being provided with an outletgate Z. The, higher portion of the floor i, near the front a, is provided with a short flue-pipe m for the escape of the gases and smoke from the furnace.

A floor n is arranged in the structure and slantsfrom the rear wall downwardly toward the front wall, but does not extend entirely thereto, leaving a passage-way o between the floor and the front Wall, the floor being provided at its upper portion, near the rear Wall b, with a flue-pipe p. Above the floor n is another floor g, that is slanting from the front wall toward the rear wall, but does not extend entirely thereto, leaving a passageway r between the floor and the rear wall, the floor q being provided at its upper portion with a flue-pipe s. Above the floor g is still another loort, that extends om thel rear wall b nearly to the front wall, leaving a passage-way u at the front wall, the floor slant- IOO ing downwardly from the rear wall toward the front wall, and the floor is provided at its upper portion with a flue-opening e, to which is connected a flue w, extending therefrom upon the top of the floor t toward the lower end thereof, the flue being connected with a vertical flue that is attached to the roof f, extending therethrough. A hopper y is mounted on the root' f, extending therethrough, the hopper being provided with an inlet-gate y. A flue-pipe z is connected to the upper end of the flue-pipe The inclined floors are mounted upon the angle-irons e and e, and the latter serve to stilfe'n the walls of the structure, and it will be understood that the inclined floors divide the space in the structure into different compartments or chambers except at the passage-ways o r u, which are relatively narrow. The floors are provided with deilectors G, arranged against the flue-pipes m p s w on the higher portions of the inclined iloors to prevent the sand or other articles from lodging against the flue-pipes. These deflectors are substantially parts of the flue-pipes and may be variously constructed as such.

In order to insure the most perfect combustion of the fuel and to prevent cold air that may enter the lire-door from passing to the roof t of the furnace, an arch H is arranged above the fire-door opening extending from the front toward the rear of the furnace at a suitable distance below the roof i; but in some cases the arch may be dispensed Frith, especially in case gas or oil be used as nel.

In practical use the furnace is to be fired in the usual way, any suitable fuel being used, the gases of combustion following the course of the arrows in Fig. 2 through the flue-pipes m p S w Qc, much of the heat therefrom'remaining under the several inclined floors and may accumulate, so as to have a drying effect upon the tops of the floors. The sand or other substance should be placed in the hopper y and permitted to gravitate down the floor t, through the passage-way a, down the floor g, through the passage-way r, down the floor n, through the passage-way o, down the floor t' and out through the discharge-opening y.

The floors being thoroughly heated will rapidly dry the sand or other substance very rapidly in its passage from the hopper to the outlet-opening, so that a continuous stream may flow through the drier and become dry Without the delays usually attendant on other drying apparatus.

Having thus described the invention, what is claimed as new is- 1. A drier comprising a structure having a front walla rear wall and two side walls, the lower part of the structure forming a furnace-chamber, a slanting floor in the structure joining all of the walls thereof forming a roof for the furnace-eliminiier and provided with a flue-pipe remote from the walls, the Wall at the lower portion of the floor having an outlet-opening therein, and a plurality of comnmnicating drying-chainl1ers arranged above the floor, each chamber above the lower one having an inclined lloor oined at its higher end and sides to several of the walls and provided with a llue-pipe remote from the walls, the furnace-roof forming the lloor of the lowerrnost drying-chamber.

2. A drier comprising a structure having` a front wall, a rear wall, two side walls, the lower part ofthe structure forming a furnacechamber, one of the walls provided with a door, a slanting 'floor in the structure forining a roof for the furnace and provided at its higher portion with a line-pipe, there being an outlet-opening in a wall at the lower portion of the floor, and a plurality of connnunicating chambers arranged above the floor, each chamber above the lower one having an inclined floor provided at its higher portion with a flue-pipe7 the uppermost chamber being provided with an inlet-opening for admission of substances to be dried, the furnace-roof forming the floor of the lowerinost ch amb er.

3. A drier comprising a structure having a front wall, a rear wall, two side walls, the ower part of the structure forming a furnacechamber, one of the walls provided with a door, a slanting floor in the structure forniing a roof for the furnace and provided at its higher portion with a flue-pipe, the lloor joining all of the walls of the structure, and the wall at the lower portion of the lloor ha'wing` an outlet-opening therein, and a plurality of eonnrulnicating chambers arranged above the floor, each chamber above the lower one having an inclined floor provided at its higher portion. with a flue-pipe for the passage ol heat through the floors, the furnace-roof being the floor of the lowerniost chamber, the uppermost chamber having yan inlet-opening to receive substances to be dried, and a lluepipe connected to the lloor of the uppermost chamber in communication with the chainber beneath and extending through the uppermost chamber to the exterior of the structure.

4. A drier comprising a structure having a front wall, a rear wall, two side walls, and a roof at the tops of the walls, the lower part of the structure forming a furnace-chamber, a plurality of communicating chambers arranged above the furnace-clrainber, the lowerinost chamber having an inclined floor lioining all of the walls of the structure and provided with a flue-pipe remote from the walls, one of the walls having an outlet-opening therein above the floor, the uppermost chainper being provided with an inlet-opening,

IOC

ILS

each chamber above the lower one having an nication with the flue-pipe thereof and eX- inelined floor joined at its sides and higher tending to the exterior of the structure. lo end to several walls and provided with a ilue- In testimony whereof I a'HiX my signature pipe remote from the walls7 each one of said` in presence of two witnesses.

line-pipes except the uppermost one being b MARGUERITE SCH-AEFFER. remote from the lower ends of the floors next l Witnesses:

above them, and a flue-pipe connected to the WM. H. PAYNE,

iloor of the uppermost chamber in commu- E. T. SILVIUS. 

